Heating stand for electric irons



March 17. 1925.

c, A. COOK HEATING STAND FOR ELECTRIC IRONS 2 Sheets-Sheet 1 Filed Sept.10' 1924 March 17,, 1925.

C. A. COOK HEATING STAND FOR ELECTRIC IRONS Filed sept. 10 1924 2Sheets-Sheet 2 Patented Mar. 17, 1925.

i 1,530,353? 'UNITED STATES-PATENT OFFICE- mm A. 000K, or omcaeo,'rLL'nwoIs, ASSIGNOR To C. H. D. ELECTRIC comm,

' or crncaoo. mnmors, a CORPORATION or ILLINOIS.

m'rme s'rar'm roa' ELECTRIC IRONS.

a plication fled September 1924. Serial No. 736,985.

To all whom it may concern: I

Be it known that I, Cmumns A. Coon, a citizen of the United States, andresiding at Chicago, Cook County, State of Illinois, have inventedcertain new and useful Imrovements in- Heating Stands for Electric rons,of which they following is a specification.

This invention relates to .a heating stand for electric irons. andparticularl irons of the type which are provided wit two terminal plument within theiron. invention. is to provide a double stand or a standhavi two iron receiving platform for heating irons of that type, the.platforms beingso arranged that when an iron is placed on one of themthe weight of the iron will close electric switches or contacts to causecurrentto flow through the iron and -will automatically break thecircuit leading to the other. platform. A further object is to rovide aconstruction-of the kind specific in which the various contacts aremounted in a suitable supporting member and mechanically connectedpreferably by levers so that when an iron is placed on one of theplatforms; the contacts "or switches for that platform will be moved toclose a circuit through the iron and the eontacts or switches for theother platform'simultaneouslymoved into positionto break or. interruptthe circuit to the other v form. The foregoing and other usefu objectsare attained by the-construction de-' tiall'y on the line 38 of Figure1;

Fig. 4 is a dia mmatic view showing the contacts of sw1tcbes,. themanner of operating the same, and the various [electrical connections;and

F 5 is an enlarged viewof one of the sw'i es or contact arran mentsemployed. Referring to thedrawmgs in detail, the,

numeral 10 indicates agenerally the heating stand which is provi ed withtwo iron reconnected with a heating ele- The object of the- "ceivingplatforms 10, 10, these platforms being preferably integrally connectedto form'the stand and being shaped so asto receive an iron as A placedthereon. My

improved stand is designed for use with that type of iron which containsa heating element indicated at 11 in Figure 4. and which heating elementis provided with two terminal plugs or members 12 which form the meansfor connecting the iron to an electriccircuit.

.My'. present invention relates particularly to the mechanism by whichan electric currentlis caused to flow through an iron placed on eitherof the platforms 10 of the stand. 7

Such mechanism comprises a supporting member 13 which is secured to theend of the stand 10 in any-suitable manner. which supporting member maybe made from lava rock. or any other suitable insulating material. Thevarious switches or contact members for causing current to flow throughan iron placed on either of the platforms are supported in-this member13. Preferably a plate. of insulating material 13' is placed 30 oneither side of the. member 13 to insulate the operating parts of themechanism hereinafter described and the whole may he mounted in asuitable casing or covering 13'.

Two switches or contact devices are provided for each platform 10. Eachof these switches comprises a vertically movable contact 14 andv astationary contact 15.

the former being arranged to slide up and down in suitable slots formedin the member 13. The contacts 14 for each platform @are so spaced andarranged in the member '13 as to receive the terminal plugs 12 of aniron placed on either platform of the 96 stand. The weight of an ironplaced on either .platform will serve to depress the contacts 14 forsuch platform and move the same into engagement with the correspondingfixed contacts 15.

Two' levers 16 are pivoted intermediate their ends as at 17 to themember 13 or any other suitable part, these levers preferably beingarranged in depressions on opposite sides of themember 13. Each lever 16has one of its ends pivotally connected to one of the movable contacts14 for one platform and its other end pivotally connected to one of themovable contacts for the other platform' It will thus be seen I thatwhen the contacts 14 on one side of the standare depressed by placing aniron thereon. the corresponding contacts on the other side of the standwill be raised and held out of engagement with the corresponding fixedcontacts.

The fixed contacts 15 are connected to the terminals 18 of an electriccircuit, one terminal of this circuit preferably being connected to theinner contact 15 on 'one side of the stand and the other to the innercontact 15 on the other side of the stand. it will also be noted thatthe outer contact.- 15 on each side of the stand is connected by meansof a I suitable comluetor 19 to the inner contact 15 on the other sideof the stand. By reason of these conm'wtions-it will be seen that whenthe terminal plugs 12 of an iron are placed on the contacts 14 foreither platform and such contacts are depressed into engagement with thecorresponding fixed contacts, an electric circuit will flow through theheating element of the iron so placed. .\t the same time. the contacts14 on the other platform will be held out of engagement with theircorresponding fixed contacts 15. Each of the movable contacts 14,together with its corresponding contact 15, thus forms in effect anelectric switch. As clearly illustrated in Figure 5 of the drawing, theupper face of each stationary contact 15 is preferably provided with adepression 15" which is adapted to receive the correspondingly shapedlower end IP'Of a. movable contact-14'. It will also be noted that theuppersurfaces of the movable contacts 14 are provided with depressions14" into which the terminal lugs 12 of the iron are adapted to rest. Its ould be noted further that one or both ends of each of the levers 15is insulated from the pivot pin which connects the same to the movablecontacts 14. Such insulation is indicated at 20 in the drawings. Thisprevents any flow of current from either of the contacts 14 through thelevers 16 to the corresponding contact on the other. side of the stand.

As will be clearly seen from Figure 1, the

' upper portion of the member 13 is cut away l ed above the contacts 14to provide openings into which the terminal lugs 12 of the iron may beinserted. In or er to prevent accif dental contact with thecontact-members 14.-

when an iron is placed on one of the platforms, the iron is preferablyprovided with a shield 21 secured thereto above the terminal plugs 12and so positioned as to cover the openingsabove the contacts 14.

Briefly referring to the o ration of the device, it will be unde thatwhen an iron is placed on one of the platforms 10 with the terminalplugs 12 thereof resting on the movable contacts 14, such contacts willdepressed'by the weight of the iron and will be caused to movedownwardly and enga the correspondin fixed contacts 15. Simu taneouslythe movdble contacts 14 for the other platform will be raised throughthe medium of the levers 16 and will be held out of engagement with thestationary contacts 15 for that piatform. The device thus provides anarrangement by which one iron may be heated while the other is beingused, and when the used iron is replaced on the platform and the heatedone lifted therefrom, the device will automatically operate to cause thecurrent to flow through and heat the iroii then'on the stand. I

Various changes in the details of the foregoing structure may of coursebe made, without depaiting from the spirit of the invention as outlinedin the appended claims.

Having thus described the invention what A is claimed as new and desiredto be secured by Letters Patent is:

1. A heating stand for electric irons comprising two platforms eachadapted to receive an iron. an electric circuit leadingto each of saidplatforms-means operated by placing an iron'on either of said platformsfor establishing a circuit through the iron so placed. and means forsimultaneously interruptirig the circuit leading to-the other platform.'

2., A heating stand for electric irons com prising two platforms eachadapted to reeeive an ironsan electric circuit leading-to each of saidplatforms, separate switch mechanism :for controlling the flow ofcurrent to each of said platforms. means operated by placing an iron oneither of said platforms for closing the switch mechanism for theplatform on which the iron is placed and for simultaneously opening theswitch mechanism for the other platform.

3. A heating stand for electric irons of the type having two contactmembers thereon comprising two iron receiving platforms, two electricswitches arranged adjacent each of said platforms, the switches for eachplatform being arranged to cooperate with the contact members of an ironplaced thereon, and means operated by the weight of an iron on oneplatform for closing the switches of that platform and simultaneouslyopening the switches of the other platorm.

4. A heating stand for electric irons of the type provided with twocontact members. said stand having two iron receiving platforms, eachprovided with two sets of contacts for closing the circuit through thecontact members of the iron. and means operated by the weight of an ironplaced on either of said platforms for closing the contacts of theplatform on which the iron is placed and simultaneously opening thecontacts of the other platform.

5. A heating stand for electricirons comprising WQ associatediron-reoelvmg platforms, a fixed contact and a movable contact arrangedadjacent each platform, the movable contact for each platform beingpositioned to be engaged and moved against its respective fixed contactby the weight of an iron, means for causing each of said movablecontacts to move away from its respective fixed contact when .the otheris moved toward its respective fixed contact.

6. A heating stand for electric irons ofthe type having two electricterminal plugs; said stand having two iron-receiving platforms, a pairof movable contacts for each platform positioned to be engaged by theplugs of the iron, and moved by the weight of the iron, :1 pair of fixedcontacts for each platform arranged to be engaged by said movablecontacts, and means for causing the movable contacts for one latform tomove away from their respective fixed contacts when the movable contactsfor the other platform are moved toward their respective fixedcontactsby the weight of an iron.

7. A heating stand for electric irons of the type having two electricterminal plugs, said stand having two iron-receiving platforms, a pairof movable contacts for each platform ositioned to be engaged bytieplugs of the iron and moved by the weig t of the iron, a pair offixed contacts for each platform arranged to be engaged by said movablecontacts, and lever mechanism associated with said movable contacts forcausingthe movable contacts for one platform to move away from theircorresponding fixed contacts when the movable contacts for the otherplatform are causedto move toward their corresponding fixed contacts.

8. A heating stand for electric irons of the type having two electricterminal plugs,

said stand having two iron-receiving platforms, a pair of movablecontacts for each platform positioned to be engaged by the plugs of theiron and moved by the weight of the iron, 8. pair of fixed contacts foreach platform arranged to be engaged by said movable contacts, a pair oflevers pivotally supported intermediate their ends, each of said levershaving one end connected to one of the movable contacts for one of saidplatforms and the other end connected V In testimony whereof I hereuntoaflix my signature.

CHARLES A. COOK.

